pref admin panel courses

apps/account/templates/account/json_editor_field.html

@@ -312,7 +312,7 @@
     /* Modern JSON Editor Container - Unfold theme */
     .json-editor-container {
         margin-bottom: 1.5rem;
-        background-color: #fff;
+        background-color: #0C0B1D;
         border-radius: 0.5rem;
         overflow: hidden;
         width: 100%;

apps/api/views.py

@@ -17,23 +17,13 @@ class HomeView(GenericAPIView):
     serializer_class = HomeSerializer
 
     def get(self, request):
-        emails = ["zahra@gmail.com", "john.doe@example.com", "alice@example.com"]
-        phone_numbers = ["09012037621", "09012037615", "09012045432"]
-        fullnames = ["Alireza", "John Doe", "Alice Smith"]
-        # انتخاب رندوم از هر لیست
-        email = random.choice(emails)
-        phone_number = random.choice(phone_numbers)
-        fullname = random.choice(fullnames)
-        # ساخت کاربر جدید
-        user = User.objects.create(
-            email=email,
-            phone_number=phone_number,
-            fullname=fullname,
-        )
-        # ایجاد توکن برای کاربر
-        token, created = Token.objects.get_or_create(user=user)
+        # Get build_number from headers
+        build_number = request.META.get('HTTP_BUILD_NUMBER')
         
-        return Response({'token': token.key})
+        # Print the build_number
+        print(f"Build Number: {build_number}")
+        
+        return Response({'token': "ok", 'build_number': build_number})
 
 class CountryView(GenericAPIView):
     

apps/course/admin/course.py

@@ -34,8 +34,8 @@ from django.contrib.postgres.fields import ArrayField
 
 from utils.admin import project_admin_site
 from utils.json_editor_field import JsonEditorWidget
-from apps.course.models import Course, Glossary, Attachment, CourseCategory, Participant
-from apps.course.models.lesson import Lesson
+from apps.course.models import Course, Glossary, Attachment, CourseCategory, Participant, CourseGlossary, CourseAttachment
+from apps.course.models.lesson import Lesson, CourseLesson
 from apps.account.models import StudentUser, User
 
 from utils.schema import get_weekly_timing_schema, get_course_feature_schema
@@ -87,10 +87,12 @@ class CourseCategoryAdmin(ModelAdmin):
 
 
 class CourseForm(forms.ModelForm):
+    
     class Meta:
         model = Course
         fields = '__all__'
         exclude = ('slug',)
+        
         widgets = {
             'timing': JsonEditorWidget(attrs={
                 'schema': get_weekly_timing_schema(),
@@ -104,39 +106,38 @@ class CourseForm(forms.ModelForm):
         help_texts = {
             'status': 'If set to inactive, the course will not be displayed.',
         }
+    
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        # Make short_description required
+        self.fields['short_description'].required = True
 
 
-class AttachmentInline(TabularInline):
-    model = Attachment
+class CourseAttachmentInline(StackedInline):
+    model = CourseAttachment
     extra = 0
-    fields = ('title', 'file', 'file_size')
+    fields = ('attachment',)
     tab = True
-
-    def save_model(self, request, obj, form, change):
-        if obj.file:
-            obj.file_size = obj.file.size
-        super().save_model(request, obj, form, change)
+    autocomplete_fields = ('attachment',)
 
 
-class GlossaryInline(StackedInline):
-    model = Glossary
-    fields = ('title', 'description')
+class CourseGlossaryInline(StackedInline):
+    model = CourseGlossary
+    fields = ('glossary',)
     extra = 0
     tab = True
     show_change_link = True
+    autocomplete_fields = ('glossary',)
 
 
-class LessonInline(StackedInline):
-    model = Lesson
-    fields = ('title', 'is_active', 'duration', 'content_type', 'content_file', 'video_link', 'priority',)
+class CourseLessonInline(StackedInline):
+    model = CourseLesson
+    fields = ('lesson', 'title', 'is_active', 'priority',)
     extra = 0
     tab = True
     show_change_link = True
     ordering_field = "priority"
-    conditional_fields = {
-        'content_file': "content_type == 'video_file'",
-        'video_link': "content_type == 'youtube_link'",
-    }
+    autocomplete_fields = ('lesson',)
 
 
 class ParticipantAdmin(ModelAdmin):
@@ -227,7 +228,7 @@ class AddStudentForm(forms.Form):
         
 class CourseAdmin(ModelAdmin):
     form = CourseForm
-    inlines = [LessonInline, AttachmentInline, GlossaryInline, ParticipantInline]
+    inlines = [CourseLessonInline, CourseAttachmentInline, CourseGlossaryInline, ParticipantInline]
     list_display = ('display_header', 'category', 'display_professor', 'status', 'display_price', 'is_online')
     list_filter = [
         ('status', ChoicesDropdownFilter),
@@ -275,7 +276,7 @@ class CourseAdmin(ModelAdmin):
         }),
         (_('Course Details'), {
             'fields': ('description', 'short_description', 'level', 'duration', 'lessons_count',),
-            'classes': ['tab'],
+            # 'classes': ['tab'],
         }),
         (_('Media'), {
             'fields': ('video_type', 'video_file', 'video_link'),
@@ -285,7 +286,7 @@ class CourseAdmin(ModelAdmin):
         }),
         (_('Timing & Features'), {
             'fields': ('timing', 'features'),
-            'classes': ['tab'],
+            # 'classes': ['tab'],
         }),
     )
 
@@ -422,10 +423,25 @@ class CourseAdmin(ModelAdmin):
 
     
 class GlossaryAdmin(ModelAdmin):
-    list_display = ('title', 'course', 'description')
+    list_display = ('title', 'description')
+    search_fields = ('title', 'description')
+    ordering = ('-id',)
+
+
+class CourseGlossaryAdmin(ModelAdmin):
+    list_display = ('course', 'glossary_title', 'glossary_description')
     list_filter = ('course',)
-    search_fields = ('title', 'description', 'course__title')
+    search_fields = ('glossary__title', 'glossary__description', 'course__title')
     ordering = ('-id',)
+    autocomplete_fields = ('course', 'glossary')
+    
+    @admin.display(description=_("Title"))
+    def glossary_title(self, obj):
+        return obj.glossary.title
+        
+    @admin.display(description=_("Description"))
+    def glossary_description(self, obj):
+        return obj.glossary.description
 
 
 class AttachmentAdminForm(forms.ModelForm):
@@ -462,9 +478,8 @@ class AttachmentAdminForm(forms.ModelForm):
 
 class AttachmentAdmin(ModelAdmin):
     form = AttachmentAdminForm
-    list_display = ('title', 'course', 'file', 'file_size')
-    list_filter = ('course',)
-    search_fields = ('title', 'file', 'course__title')
+    list_display = ('title', 'file', 'file_size')
+    search_fields = ('title', 'file')
 
     def save_model(self, request, obj, form, change):
         if obj.file:
@@ -472,9 +487,30 @@ class AttachmentAdmin(ModelAdmin):
         super().save_model(request, obj, form, change)
 
 
+class CourseAttachmentAdmin(ModelAdmin):
+    list_display = ('course', 'attachment_title', 'attachment_file', 'attachment_file_size')
+    list_filter = ('course',)
+    search_fields = ('attachment__title', 'course__title')
+    autocomplete_fields = ('course', 'attachment')
+    
+    @admin.display(description=_("Title"))
+    def attachment_title(self, obj):
+        return obj.attachment.title
+        
+    @admin.display(description=_("File"))
+    def attachment_file(self, obj):
+        return obj.attachment.file
+        
+    @admin.display(description=_("File Size"))
+    def attachment_file_size(self, obj):
+        return obj.attachment.file_size
+
+
 # Register with the project admin site
 project_admin_site.register(Course, CourseAdmin)
 project_admin_site.register(CourseCategory, CourseCategoryAdmin)
 project_admin_site.register(Glossary, GlossaryAdmin)
+project_admin_site.register(CourseGlossary, CourseGlossaryAdmin)
 project_admin_site.register(Attachment, AttachmentAdmin)
+project_admin_site.register(CourseAttachment, CourseAttachmentAdmin)
 project_admin_site.register(Participant, ParticipantAdmin)

apps/course/admin/lesson.py

@@ -17,7 +17,7 @@ from unfold.widgets import (
 )
 
 from utils.admin import project_admin_site
-from apps.course.models.lesson import Lesson, LessonCompletion
+from apps.course.models.lesson import Lesson, CourseLesson, LessonCompletion
 from unfold.admin import ModelAdmin, StackedInline, TabularInline
 
 
@@ -29,20 +29,21 @@ class LessonForm(forms.ModelForm):
             'content_type': UnfoldAdminRadioSelectWidget(),
         }
 
-from apps.quiz.models import Quiz
 
-    
+class CourseLessonForm(forms.ModelForm):
+    class Meta:
+        model = CourseLesson
+        fields = '__all__'
+
+
 class LessonAdmin(ModelAdmin):
     form = LessonForm
-    list_display = ('title', 'course', 'display_duration', 'content_type', 'is_active', 'priority')
+    list_display = ('title', 'display_duration', 'content_type')
     list_filter = (
-        ('course', MultipleRelatedDropdownFilter),
         ('content_type', ChoicesDropdownFilter),
-        'is_active',
     )
-    search_fields = ('title', 'course__title')
-    ordering = ('course', 'priority')
-    autocomplete_fields = ('course', )
+    search_fields = ('title',)
+    ordering = ('title',)
     list_filter_submit = True
     radio_fields = {
         "content_type": admin.HORIZONTAL,
@@ -54,7 +55,7 @@ class LessonAdmin(ModelAdmin):
 
     fieldsets = (
         (None, {
-            'fields': ('course', 'title', 'priority', 'is_active', 'duration')
+            'fields': ('title', 'duration')
         }),
         (_('Content'), {
             'fields': ('content_type', 'content_file', 'video_link'),
@@ -86,15 +87,41 @@ class LessonAdmin(ModelAdmin):
             obj.duration
         )
 
+
+class CourseLessonAdmin(ModelAdmin):
+    form = CourseLessonForm
+    list_display = ('title', 'course', 'display_duration', 'is_active', 'priority')
+    list_filter = (
+        ('course', MultipleRelatedDropdownFilter),
+        'is_active',
+    )
+    search_fields = ('title', 'course__title')
+    ordering = ('course', 'priority')
+    autocomplete_fields = ('course', 'lesson')
+    list_filter_submit = True
+
+    fieldsets = (
+        (None, {
+            'fields': ('course', 'lesson', 'title', 'priority', 'is_active')
+        }),
+    )
+
+    @display(description=_("Duration"))
+    def display_duration(self, obj):
+        return format_html(
+            '<span class="badge badge-info">{} min</span>',
+            obj.lesson.duration
+        )
+
     def get_queryset(self, request):
         qs = super().get_queryset(request)
         return qs.order_by('course', 'priority')
 
 
 class LessonCompletionAdmin(ModelAdmin):
-    list_display = ('student', 'lesson', 'completed_at')
-    search_fields = ('student__fullname', 'student__email', 'lesson__title', 'lesson__course__title')
-    list_filter = ('lesson__course', 'completed_at')
+    list_display = ('student', 'course_lesson', 'completed_at')
+    search_fields = ('student__fullname', 'student__email', 'course_lesson__title', 'course_lesson__course__title')
+    list_filter = ('course_lesson__course', 'completed_at')
     ordering = ('-completed_at',)
 
     def get_readonly_fields(self, request, obj=None):
@@ -102,10 +129,11 @@ class LessonCompletionAdmin(ModelAdmin):
         Make fields readonly if the object already exists.
         """
         if obj:
-            return ['student', 'lesson', 'completed_at']
+            return ['student', 'course_lesson', 'completed_at']
         return []
 
 
 # Register with the project admin site
 project_admin_site.register(Lesson, LessonAdmin)
+project_admin_site.register(CourseLesson, CourseLessonAdmin)
 project_admin_site.register(LessonCompletion, LessonCompletionAdmin)

apps/course/management/commands/clear_course_data.py

@@ -0,0 +1,134 @@
+from django.core.management.base import BaseCommand
+from django.db import transaction, connection
+from django.db.models import ProtectedError
+from django.utils.translation import gettext_lazy as _
+
+from apps.course.models import (
+    Course, CourseCategory, 
+    Lesson, CourseLesson, LessonCompletion,
+    Attachment, CourseAttachment,
+    Glossary, CourseGlossary,
+    Participant
+)
+
+
+class Command(BaseCommand):
+    help = _('Clear all course-related data from the database')
+
+    def add_arguments(self, parser):
+        parser.add_argument(
+            '--force',
+            action='store_true',
+            dest='force',
+            help=_('Force deletion without confirmation'),
+        )
+        parser.add_argument(
+            '--model',
+            type=str,
+            dest='model',
+            help=_('Specify a single model to clear (e.g., "Course", "Lesson", etc.)'),
+        )
+        parser.add_argument(
+            '--legacy-only',
+            action='store_true',
+            dest='legacy_only',
+            help=_('Clear only legacy models (before migration to new structure)'),
+        )
+
+    def table_exists(self, table_name):
+        """Check if a table exists in the database."""
+        with connection.cursor() as cursor:
+            cursor.execute(
+                """
+                SELECT EXISTS (
+                    SELECT FROM information_schema.tables 
+                    WHERE table_schema = 'public'
+                    AND table_name = %s
+                );
+                """,
+                [table_name]
+            )
+            return cursor.fetchone()[0]
+
+    def handle(self, *args, **options):
+        force = options['force']
+        specific_model = options.get('model')
+        legacy_only = options.get('legacy_only')
+
+        if not force and not specific_model:
+            confirm = input(_('This will delete ALL course-related data. Are you sure? (yes/no): '))
+            if confirm.lower() != 'yes':
+                self.stdout.write(self.style.WARNING(_('Operation cancelled.')))
+                return
+        
+        # Define all models
+        all_models = {
+            'Course': (Course, 'course_course'),
+            'CourseCategory': (CourseCategory, 'course_coursecategory'),
+            'Lesson': (Lesson, 'course_lesson'),
+            'CourseLesson': (CourseLesson, 'course_courselesson'),
+            'LessonCompletion': (LessonCompletion, 'course_lessoncompletion'),
+            'Attachment': (Attachment, 'course_attachment'),
+            'CourseAttachment': (CourseAttachment, 'course_courseattachment'),
+            'Glossary': (Glossary, 'course_glossary'),
+            'CourseGlossary': (CourseGlossary, 'course_courseglossary'),
+            'Participant': (Participant, 'course_participant'),
+        }
+        
+        # Legacy models (before migration)
+        legacy_models = {
+            'Course': (Course, 'course_course'),
+            'CourseCategory': (CourseCategory, 'course_coursecategory'),
+            'Lesson': (Lesson, 'course_lesson'),
+            'LessonCompletion': (LessonCompletion, 'course_lessoncompletion'),
+            'Attachment': (Attachment, 'course_attachment'),
+            'Glossary': (Glossary, 'course_glossary'),
+            'Participant': (Participant, 'course_participant'),
+        }
+        
+        models_to_use = legacy_models if legacy_only else all_models
+        
+        if specific_model:
+            # Clear only the specified model
+            if specific_model not in models_to_use:
+                self.stdout.write(self.style.ERROR(_(f'Unknown model: {specific_model}')))
+                self.stdout.write(self.style.WARNING(_(f'Available models: {", ".join(models_to_use.keys())}')))
+                return
+                
+            model_info = models_to_use[specific_model]
+            models_to_clear = [(specific_model, model_info[0], model_info[1])]
+        else:
+            # Clear all models in the correct order to avoid foreign key constraints
+            models_to_clear = []
+            
+            # Order matters for foreign key constraints
+            model_order = [
+                'LessonCompletion', 'CourseLesson', 'Lesson', 
+                'CourseAttachment', 'Attachment', 
+                'CourseGlossary', 'Glossary', 
+                'Participant', 'Course', 'CourseCategory'
+            ]
+            
+            for model_name in model_order:
+                if model_name in models_to_use:
+                    model_info = models_to_use[model_name]
+                    models_to_clear.append((model_name, model_info[0], model_info[1]))
+        
+        # Process each model
+        for model_name, model_class, table_name in models_to_clear:
+            # Check if the table exists
+            if not self.table_exists(table_name):
+                self.stdout.write(self.style.WARNING(_(f'Table {table_name} does not exist, skipping {model_name}')))
+                continue
+                
+            try:
+                count = model_class.objects.count()
+                model_class.objects.all().delete()
+                self.stdout.write(self.style.SUCCESS(_(f'Deleted {count} {model_name} records')))
+            except ProtectedError as e:
+                self.stdout.write(self.style.ERROR(_(f'Could not delete {model_name} records due to protected foreign keys')))
+                self.stdout.write(self.style.ERROR(str(e)))
+            except Exception as e:
+                self.stdout.write(self.style.ERROR(_(f'Error deleting {model_name} records: {str(e)}')))
+        
+        self.stdout.write(self.style.SUCCESS(_('Course data clearing completed')))

apps/course/migrations/0004_alter_attachment_options_alter_glossary_options_and_more.py

@@ -0,0 +1,132 @@
+# Generated by Django 5.1.8 on 2025-04-13 01:35
+
+import django.db.models.deletion
+import django.utils.timezone
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('account', '0002_alter_user_phone_number'),
+        ('course', '0003_alter_course_is_online_alter_course_timing_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='attachment',
+            options={'verbose_name': 'Attachment', 'verbose_name_plural': 'Attachments'},
+        ),
+        migrations.AlterModelOptions(
+            name='glossary',
+            options={'verbose_name': 'Glossary', 'verbose_name_plural': 'Glossaries'},
+        ),
+        migrations.RemoveField(
+            model_name='attachment',
+            name='course',
+        ),
+        migrations.RemoveField(
+            model_name='glossary',
+            name='course',
+        ),
+        migrations.RemoveField(
+            model_name='lesson',
+            name='course',
+        ),
+        migrations.RemoveField(
+            model_name='lesson',
+            name='is_active',
+        ),
+        migrations.RemoveField(
+            model_name='lesson',
+            name='priority',
+        ),
+        migrations.AddField(
+            model_name='attachment',
+            name='created_at',
+            field=models.DateTimeField(auto_now_add=True, default=django.utils.timezone.now, verbose_name='Created at'),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='attachment',
+            name='updated_at',
+            field=models.DateTimeField(auto_now=True, verbose_name='Updated At'),
+        ),
+        migrations.AddField(
+            model_name='glossary',
+            name='created_at',
+            field=models.DateTimeField(auto_now_add=True, default=django.utils.timezone.now, verbose_name='Created at'),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='glossary',
+            name='updated_at',
+            field=models.DateTimeField(auto_now=True, verbose_name='Updated At'),
+        ),
+        migrations.AlterField(
+            model_name='lesson',
+            name='content_type',
+            field=models.CharField(choices=[('youtube_link', 'Youtube Link'), ('video_file', 'Video File')], max_length=50, verbose_name='Content Type'),
+        ),
+        migrations.CreateModel(
+            name='CourseAttachment',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created_at', models.DateTimeField(auto_now_add=True, verbose_name='Created at')),
+                ('updated_at', models.DateTimeField(auto_now=True, verbose_name='Updated At')),
+                ('attachment', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='course_attachments', to='course.attachment', verbose_name='Attachment')),
+                ('course', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='attachments', to='course.course', verbose_name='Course')),
+            ],
+            options={
+                'verbose_name': 'Course Attachment',
+                'verbose_name_plural': 'Course Attachments',
+                'ordering': ('-id',),
+            },
+        ),
+        migrations.CreateModel(
+            name='CourseGlossary',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created_at', models.DateTimeField(auto_now_add=True, verbose_name='Created at')),
+                ('updated_at', models.DateTimeField(auto_now=True, verbose_name='Updated At')),
+                ('course', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='glossaries', to='course.course', verbose_name='Course')),
+                ('glossary', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='course_glossaries', to='course.glossary', verbose_name='Glossary')),
+            ],
+            options={
+                'verbose_name': 'Course Glossary',
+                'verbose_name_plural': 'Course Glossaries',
+                'ordering': ('-id',),
+            },
+        ),
+        migrations.CreateModel(
+            name='CourseLesson',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(blank=True, max_length=255, null=True, verbose_name='Course Lesson Title')),
+                ('priority', models.IntegerField(blank=True, null=True, verbose_name='Priority')),
+                ('is_active', models.BooleanField(default=True, verbose_name='Is Active')),
+                ('created_at', models.DateTimeField(auto_now_add=True, verbose_name='Created at')),
+                ('updated_at', models.DateTimeField(auto_now=True, verbose_name='Updated At')),
+                ('course', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='lessons', to='course.course', verbose_name='Course')),
+                ('lesson', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='course_lessons', to='course.lesson', verbose_name='Lesson')),
+            ],
+        ),
+        migrations.AlterUniqueTogether(
+            name='lessoncompletion',
+            unique_together=set(),
+        ),
+        migrations.AddField(
+            model_name='lessoncompletion',
+            name='course_lesson',
+            field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.CASCADE, related_name='completions', to='course.courselesson'),
+            preserve_default=False,
+        ),
+        migrations.AlterUniqueTogether(
+            name='lessoncompletion',
+            unique_together={('student', 'course_lesson')},
+        ),
+        migrations.RemoveField(
+            model_name='lessoncompletion',
+            name='lesson',
+        ),
+    ]

apps/course/models/course.py

@@ -15,8 +15,11 @@ def course_file_upload_to(instance, filename):
     return os.path.join(f"courses/{instance.slug}/videos/{filename}")
 
 
-
 def attachment_file_upload_to(instance, filename):
+    return os.path.join(f"attachments/{filename}")
+
+
+def course_attachment_file_upload_to(instance, filename):
     return os.path.join(f"courses/{instance.course.slug}/attachments/{filename}")
 
 
@@ -131,44 +134,101 @@ class Course(models.Model):
         verbose_name_plural = "Courses"
 
 
-
 class Glossary(models.Model):
-    course = models.ForeignKey(Course, on_delete=models.CASCADE, related_name='glossaries', verbose_name='Course')
+    """
+    Base Glossary model that contains the actual content
+    """
     title = models.CharField(max_length=555, verbose_name='Glossary Title')
     description = models.TextField(verbose_name='Description')
+    created_at = models.DateTimeField(auto_now_add=True, verbose_name=_("Created at"))
+    updated_at = models.DateTimeField(auto_now=True, verbose_name=_("Updated At"))
 
     def __str__(self):
-        return f"{self.course.title} - {self.title}"
-
+        return self.title
 
     class Meta:
-        ordering = ("-id",)
         verbose_name = "Glossary"
-        verbose_name_plural = "Glossary"
+        verbose_name_plural = "Glossaries"
+
+
+class CourseGlossary(models.Model):
+    """
+    Intermediate model that connects Course with Glossary
+    """
+    course = models.ForeignKey(Course, on_delete=models.CASCADE, related_name='glossaries', verbose_name='Course')
+    glossary = models.ForeignKey(Glossary, on_delete=models.CASCADE, related_name='course_glossaries', verbose_name='Glossary')
+    created_at = models.DateTimeField(auto_now_add=True, verbose_name=_("Created at"))
+    updated_at = models.DateTimeField(auto_now=True, verbose_name=_("Updated At"))
+
+    def __str__(self):
+        return f"{self.course.title} - {self.glossary.title}"
+
+    @property
+    def title(self):
+        return self.glossary.title
+    
+    @property
+    def description(self):
+        return self.glossary.description
 
+    class Meta:
+        ordering = ("-id",)
+        verbose_name = "Course Glossary"
+        verbose_name_plural = "Course Glossaries"
 
 
 class Attachment(models.Model):
-    course = models.ForeignKey(Course, on_delete=models.CASCADE, related_name='attachments', verbose_name='Course')
+    """
+    Base Attachment model that contains the actual file
+    """
     title = models.CharField(max_length=255, verbose_name='Attachment Title')
     file = models.FileField(
         upload_to=attachment_file_upload_to,
         verbose_name='Attachment File'
     )
-
     file_size = models.PositiveIntegerField(verbose_name='File Size (in bytes)', null=True, blank=True)
+    created_at = models.DateTimeField(auto_now_add=True, verbose_name=_("Created at"))
+    updated_at = models.DateTimeField(auto_now=True, verbose_name=_("Updated At"))
 
     def save(self, *args, **kwargs):
         # Calculate the file size before saving
         if self.file and not self.file_size:
             self.file_size = self.file.size
         super().save(*args, **kwargs)
-        
-        
+
+    def __str__(self):
+        return self.title
+
+    class Meta:
+        verbose_name = "Attachment"
+        verbose_name_plural = "Attachments"
+
+
+class CourseAttachment(models.Model):
+    """
+    Intermediate model that connects Course with Attachment
+    """
+    course = models.ForeignKey(Course, on_delete=models.CASCADE, related_name='attachments', verbose_name='Course')
+    attachment = models.ForeignKey(Attachment, on_delete=models.CASCADE, related_name='course_attachments', verbose_name='Attachment')
+    created_at = models.DateTimeField(auto_now_add=True, verbose_name=_("Created at"))
+    updated_at = models.DateTimeField(auto_now=True, verbose_name=_("Updated At"))
+
     def __str__(self):
-        return f"{self.course.title} - {self.title}"
+        return f"{self.course.title} - {self.attachment.title}"
+
+    @property
+    def title(self):
+        return self.attachment.title
+    
+    @property
+    def file(self):
+        return self.attachment.file
     
+    @property
+    def file_size(self):
+        return self.attachment.file_size
+
     class Meta:
         ordering = ("-id",)
-        verbose_name = "Attachment"
-        verbose_name_plural = "Attachments"
+        verbose_name = "Course Attachment"
+        verbose_name_plural = "Course Attachments"

apps/course/models/lesson.py

@@ -9,21 +9,19 @@ from apps.account.models import StudentUser
 
 
 def lesson_file_upload_to(instance, filename):
-    return os.path.join(f"courses/{instance.course.slug}/lessons/{filename}")
-
+    return os.path.join(f"lessons/{filename}")
 
 
 
 class Lesson(models.Model):
+    """
+    Base Lesson model that contains the actual content (video file or link)
+    """
     class ContentTypeChoices(models.TextChoices):
         YOUTUBE_LINK = 'youtube_link', 'Youtube Link'
         VIDEO_FILE = 'video_file', 'Video File'
-
-    course = models.ForeignKey("course.Course", on_delete=models.CASCADE, related_name='lessons', verbose_name='Course')
+    
     title = models.CharField(max_length=255, verbose_name='Lesson Title')
-    priority = models.IntegerField(null=True, blank=True, verbose_name='Priority')
-    is_active = models.BooleanField(default=True, verbose_name=_('Is Active'))
-    duration = models.PositiveIntegerField(verbose_name='Duration (in minutes)')
     content_type = models.CharField(max_length=50, choices=ContentTypeChoices.choices, verbose_name='Content Type')
     content_file = models.FileField(
         null=True,
@@ -31,57 +29,68 @@ class Lesson(models.Model):
         upload_to=lesson_file_upload_to,
     )
     video_link = models.CharField(max_length=500, null=True, blank=True, verbose_name='Link')
-
+    duration = models.PositiveIntegerField(verbose_name='Duration (in minutes)')
     created_at = models.DateTimeField(auto_now_add=True, verbose_name=_("Created at"))
     updated_at = models.DateTimeField(auto_now=True, verbose_name=_("Updated At"))
 
+    def __str__(self):
+        return self.title
+
+
+class CourseLesson(models.Model):
+    """
+    Intermediate model that connects Course with Lesson
+    """
+    course = models.ForeignKey("course.Course", on_delete=models.CASCADE, related_name='lessons', verbose_name='Course')
+    lesson = models.ForeignKey(Lesson, on_delete=models.CASCADE, related_name='course_lessons', verbose_name='Lesson')
+    title = models.CharField(max_length=255, verbose_name='Course Lesson Title', null=True, blank=True)
+    priority = models.IntegerField(null=True, blank=True, verbose_name='Priority')
+    is_active = models.BooleanField(default=True, verbose_name=_('Is Active'))
+    created_at = models.DateTimeField(auto_now_add=True, verbose_name=_("Created at"))
+    updated_at = models.DateTimeField(auto_now=True, verbose_name=_("Updated At"))
 
     def __str__(self):
-        return f"{self.course.title} - {self.title}"
+        title = self.title or self.lesson.title
+        return f"{self.course.title} - {title}"
 
     def is_completed_by(self, student):
         return self.completions.filter(student=student).exists()
     
+    @property
+    def content_type(self):
+        return self.lesson.content_type
+    
+    @property
+    def content_file(self):
+        return self.lesson.content_file
+    
+    @property
+    def video_link(self):
+        return self.lesson.video_link
+    
+    @property
+    def duration(self):
+        return self.lesson.duration
     
     def save(self, *args, **kwargs):
-        print(f'---> start')
+        # If title is not provided, use the lesson's title
+        if not self.title:
+            self.title = self.lesson.title
+            
         if self.priority is None:
             # If priority is not set, set it to the next available priority
             max_priority = self.course.lessons.aggregate(max_priority=models.Max('priority'))['max_priority']
             self.priority = (max_priority or 0) + 1
-        else:
+        else: 
             self._adjust_priorities()
         super().save(*args, **kwargs)
 
-
     def _adjust_priorities(self):
         # Adjust priorities of other lessons in the course
         lessons = self.course.lessons.exclude(pk=self.pk)
         # Shift priorities for lessons with the same or higher priority
         lessons.filter(priority__gte=self.priority).update(priority=models.F('priority') + 1)
-        
-        
-            # # If priority is set, adjust the priorities of other lessons
-            # lessons = self.course.lessons.exclude(pk=self.pk).order_by('priority')
-            
-            # updated_priorities = []
-            # inserted = False
-
-            # for lesson in lessons:
-            #     if lesson.priority >= self.priority and not inserted:
-            #         updated_priorities.append((self.priority, self))
-            #         inserted = True
-            #     updated_priorities.append((lesson.priority if not inserted else lesson.priority + 1, lesson))
 
-            # if not inserted:
-            #     updated_priorities.append((self.priority, self))
-
-            # # Update priorities in bulk
-            # for priority, lesson in updated_priorities:
-            #     lesson.priority = priority
-            #     lesson.save(update_fields=['priority'])
-
-    
 
 class LessonCompletion(models.Model):
     student = models.ForeignKey(
@@ -89,8 +98,8 @@ class LessonCompletion(models.Model):
         on_delete=models.CASCADE,
         related_name='lesson_completions'
     )
-    lesson = models.ForeignKey(
-        Lesson,
+    course_lesson = models.ForeignKey(
+        CourseLesson,
         on_delete=models.CASCADE,
         related_name='completions'
     )
@@ -98,9 +107,9 @@ class LessonCompletion(models.Model):
     created_at = models.DateTimeField(auto_now_add=True, verbose_name=_("Created at"))
 
     class Meta:
-        unique_together = ('student', 'lesson') 
+        unique_together = ('student', 'course_lesson') 
         
     def __str__(self):
-        return f"{self.student.fullname} - {self.lesson.title} - Completed"
+        return f"{self.student.fullname} - {self.course_lesson.title} - Completed"
     
         

apps/course/serializers/course.py

@@ -2,7 +2,7 @@ from rest_framework import serializers
 
 # from dj_filer.admin import get_thumbs
 from utils import get_thumbs
-from apps.course.models import Course, CourseCategory, Attachment, Glossary, LessonCompletion, Participant, Lesson
+from apps.course.models import Course, CourseCategory, Attachment, Glossary, LessonCompletion, Participant, Lesson, CourseAttachment, CourseGlossary
 from apps.chat.models import RoomMessage
 from apps.account.serializers import UserProfileSerializer
 
@@ -252,9 +252,28 @@ class AttachmentSerializer(serializers.ModelSerializer):
     class Meta:
         model = Attachment
         fields = ['id', 'title', 'file', 'file_size']
+
+
+class CourseAttachmentSerializer(serializers.ModelSerializer):
+    title = serializers.CharField(source='attachment.title', read_only=True)
+    file = serializers.FileField(source='attachment.file', read_only=True)
+    file_size = serializers.IntegerField(source='attachment.file_size', read_only=True)
+    
+    class Meta:
+        model = CourseAttachment
+        fields = ['id', 'title', 'file', 'file_size']
         
 
 class GlossarySerializer(serializers.ModelSerializer):
     class Meta:
         model = Glossary
+        fields = ['id', 'title', 'description']
+
+
+class CourseGlossarySerializer(serializers.ModelSerializer):
+    title = serializers.CharField(source='glossary.title', read_only=True)
+    description = serializers.CharField(source='glossary.description', read_only=True)
+    
+    class Meta:
+        model = CourseGlossary
         fields = ['id', 'title', 'description']

apps/course/serializers/lesson.py

@@ -1,19 +1,26 @@
 from rest_framework import serializers
-from apps.course.models import Lesson, Participant, LessonCompletion
+from apps.course.models import Lesson, CourseLesson, Participant, LessonCompletion
 from apps.quiz.serializers import QuizListSerializer
 
 
+class LessonSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Lesson
+        fields = ['id', 'title', 'content_type', 'content_file', 'video_link', 'duration']
 
 
-
-class LessonSerializer(serializers.ModelSerializer):
+class CourseLessonSerializer(serializers.ModelSerializer):
     is_complated = serializers.SerializerMethodField()
     quizs = serializers.SerializerMethodField()    
-    permission = serializers.SerializerMethodField()  
+    permission = serializers.SerializerMethodField()
+    content_type = serializers.CharField(source='lesson.content_type', read_only=True)
+    content_file = serializers.FileField(source='lesson.content_file', read_only=True)
+    video_link = serializers.CharField(source='lesson.video_link', read_only=True)
+    duration = serializers.IntegerField(source='lesson.duration', read_only=True)
     
     class Meta:
-        model = Lesson
-        fields = ['id', 'title', 'priority', 'is_active', 'permission','duration', 'content_type', 'content_file', 'video_link', 'is_complated', 'quizs']
+        model = CourseLesson
+        fields = ['id', 'title', 'priority', 'is_active', 'permission', 'duration', 'content_type', 'content_file', 'video_link', 'is_complated', 'quizs']
         
     def get_permission(self, obj):
         if student := self._get_authenticated_user():
@@ -46,12 +53,12 @@ class LessonSerializer(serializers.ModelSerializer):
          
         return LessonCompletion.objects.filter(
             student=user,
-            lesson=obj
+            course_lesson=obj
         ).exists()
 
-
     def get_quizs(self, obj):
-        quizzes = obj.quizzes.all()  # استفاده از related_name 'quizzes' برای دسترسی به کوییزهای درس
-        if quizzes.exists():
+        # Assuming the related_name for quizzes is now on CourseLesson
+        quizzes = obj.quizzes.all() if hasattr(obj, 'quizzes') else []
+        if quizzes:
             return QuizListSerializer(quizzes, many=True, context=self.context).data
-        return None
+        return None

apps/course/views/course.py

@@ -9,9 +9,9 @@ from rest_framework.filters import SearchFilter
 
 from apps.course.serializers import (
     CourseListSerializer, CourseCategorySerializer, CourseDetailSerializer,
-    AttachmentSerializer, GlossarySerializer, MyCourseListSerializer
+    CourseAttachmentSerializer, CourseGlossarySerializer, MyCourseListSerializer
 )
-from apps.course.models import Course, CourseCategory, Attachment, Glossary, Participant
+from apps.course.models import Course, CourseCategory, CourseAttachment, CourseGlossary, Participant
 from apps.course.doc import *
 
 
@@ -175,7 +175,7 @@ class MyCourseListAPIView(ListAPIView):
 
 
 class AttachmentListAPIView(ListAPIView):
-    serializer_class = AttachmentSerializer
+    serializer_class = CourseAttachmentSerializer
     
     @swagger_auto_schema(
         manual_parameters=[
@@ -197,15 +197,15 @@ class AttachmentListAPIView(ListAPIView):
             course = Course.objects.get(slug=course_slug)
         except Course.DoesNotExist:
             raise NotFound("Course not found")
-        return Attachment.objects.filter(course=course)
+        return CourseAttachment.objects.filter(course=course)
     
     
 
 
 class GlossaryListAPIView(ListAPIView):
-    serializer_class = GlossarySerializer
+    serializer_class = CourseGlossarySerializer
     filter_backends = [SearchFilter] 
-    search_fields = ['title', 'description']
+    search_fields = ['glossary__title', 'glossary__description']
     
     def get_queryset(self):
         course_slug = self.kwargs.get('slug')
@@ -214,7 +214,7 @@ class GlossaryListAPIView(ListAPIView):
         except Course.DoesNotExist:
             raise NotFound("Course not found")
 
-        return Glossary.objects.filter(course=course)
+        return CourseGlossary.objects.filter(course=course)
     
     
     

apps/course/views/lesson.py

@@ -7,9 +7,9 @@ from rest_framework import status
 from rest_framework.response import Response
 
 from apps.course.serializers import (
-    LessonSerializer
+    CourseLessonSerializer
 )
-from apps.course.models import Course, Lesson, LessonCompletion
+from apps.course.models import Course, CourseLesson, LessonCompletion
 from apps.course.doc import *
 from utils.exceptions import AppAPIException 
 from rest_framework.permissions import IsAuthenticated
@@ -17,8 +17,8 @@ from rest_framework.permissions import IsAuthenticated
 
 
 class LessonListView(ListAPIView):
-    serializer_class = LessonSerializer
-    queryset = Lesson.objects.filter(is_active=True)  
+    serializer_class = CourseLessonSerializer
+    queryset = CourseLesson.objects.filter(is_active=True)  
 
     @swagger_auto_schema(
         operation_description=doc_courses_lesson(),
@@ -39,66 +39,29 @@ class LessonListView(ListAPIView):
 
 
 class LessonDetailView(RetrieveAPIView):
-    serializer_class = LessonSerializer
+    serializer_class = CourseLessonSerializer
 
     def get(self, request, *args, **kwargs):
         lesson_id = self.kwargs.get('id')
-        lesson = get_object_or_404(Lesson, id=lesson_id, is_active=True)
+        course_lesson = get_object_or_404(CourseLesson, id=lesson_id, is_active=True)
 
-        course = lesson.course
-        lessons = Lesson.objects.filter(course=course, is_active=True).order_by('priority')
+        course = course_lesson.course
+        lessons = CourseLesson.objects.filter(course=course, is_active=True).order_by('priority')
 
         total_lessons = lessons.count()
-        current_lesson_number = list(lessons.values_list('id', flat=True)).index(lesson.id) + 1
-        next_lesson = lessons.filter(priority__gt=lesson.priority).order_by('priority').first()
+        current_lesson_number = list(lessons.values_list('id', flat=True)).index(course_lesson.id) + 1
+        next_lesson = lessons.filter(priority__gt=course_lesson.priority).order_by('priority').first()
         next_lesson_id = next_lesson.id if next_lesson else None
-        previous_lesson = lessons.filter(priority__lt=lesson.priority).order_by('-priority').first()
+        previous_lesson = lessons.filter(priority__lt=course_lesson.priority).order_by('-priority').first()
         previous_lesson_id = previous_lesson.id if previous_lesson else None
 
-        lesson_data = self.get_serializer(lesson).data
+        lesson_data = self.get_serializer(course_lesson).data
         lesson_data['total_lessons'] = total_lessons
         lesson_data['current_lesson_number'] = current_lesson_number
         lesson_data['next_lesson_id'] = next_lesson_id
         lesson_data['previous_lesson_id'] = previous_lesson_id
         lesson_data['can_go_next'] = next_lesson is not None
 
-
-
-        
-        # # Get the next and previous lessons based on priority and id
-        # next_lesson = Lesson.objects.filter(
-        #     course=lesson.course,
-        #     is_active=True,
-        #     priority__gte=lesson.priority,
-        #     id__gt=lesson.id
-        # ).order_by('priority', 'id').first()
-
-        # previous_lesson = Lesson.objects.filter(
-        #     course=lesson.course,
-        #     is_active=True,
-        #     priority__lte=lesson.priority,
-        #     id__lt=lesson.id
-        # ).order_by('-priority', '-id').first()
-        
-        # total_lessons = Lesson.objects.filter(course=lesson.course, is_active=True).count()
-        # # Calculate the current lesson number in the course
-        # current_lesson_number = Lesson.objects.filter(
-        #     course=lesson.course,
-        #     is_active=True,
-        #     priority__lte=lesson.priority
-        # ).count()
-        
-        # # Serialize the current lesson
-        # lesson_data = self.get_serializer(lesson).data
-        # # Add current lesson number and total lessons
-        # lesson_data['current_lesson_number'] = current_lesson_number
-        # lesson_data['total_lessons'] = total_lessons
-        
-        # # Add next and previous lesson ids
-        # lesson_data['next_lesson_id'] = next_lesson.id if next_lesson else None
-        # lesson_data['previous_lesson_id'] = previous_lesson.id if previous_lesson else None
-
-
         return Response(lesson_data)
 
 
@@ -129,16 +92,16 @@ class LessonCompletionCreateAPIView(GenericAPIView):
         if not lesson_id:
             return Response({'error': 'Lesson ID is required.'}, status=status.HTTP_400_BAD_REQUEST)
         try:
-            lesson = Lesson.objects.get(id=lesson_id)
-        except Lesson.DoesNotExist:
+            course_lesson = CourseLesson.objects.get(id=lesson_id)
+        except CourseLesson.DoesNotExist:
             return Response({'error': 'Lesson not found.'}, status=status.HTTP_404_NOT_FOUND)
 
         # Check if the lesson is already completed by the student
-        if LessonCompletion.objects.filter(student=student, lesson=lesson).exists():
+        if LessonCompletion.objects.filter(student=student, course_lesson=course_lesson).exists():
             return Response({'message': 'Lesson already completed.'}, status=status.HTTP_200_OK)
 
         # Create a new completion record
-        completion = LessonCompletion(student=student, lesson=lesson)
+        completion = LessonCompletion(student=student, course_lesson=course_lesson)
         completion.save()
 
         return Response({'message': 'Lesson completed successfully.'}, status=status.HTTP_201_CREATED)

config/settings/base.py

@@ -436,10 +436,9 @@ UNFOLD = {
             "page": "courses",
             "models": [
                 "course.course",
-                "course.coursecategory",
-                "course.lesson",
-                "course.glossary",
-                "course.attachment", 
+                "course.courselesson",
+                "course.courseglossary",
+                "course.courseattachment", 
                 "quiz.quiz",
             ],
             "items": [
@@ -450,22 +449,22 @@ UNFOLD = {
                     "active": lambda request: request.path.startswith(str(reverse_lazy("admin:course_course_changelist"))),
                 },
                 {
-                    "title": _("Lessons"),
+                    "title": _("Course Lessons"),
                     "icon": "menu_book",
-                    "link": reverse_lazy("admin:course_lesson_changelist"),
-                    "active": lambda request: request.path.startswith(str(reverse_lazy("admin:course_lesson_changelist"))),
+                    "link": reverse_lazy("admin:course_courselesson_changelist"),
+                    "active": lambda request: request.path.startswith(str(reverse_lazy("admin:course_courselesson_changelist"))),
                 },
                 {
-                    "title": _("Attachments"),
+                    "title": _("Course Attachments"),
                     "icon": "attach_file",
-                    "link": reverse_lazy("admin:course_attachment_changelist"),
-                    "active": lambda request: request.path.startswith(str(reverse_lazy("admin:course_attachment_changelist"))),
+                    "link": reverse_lazy("admin:course_courseattachment_changelist"),
+                    "active": lambda request: request.path.startswith(str(reverse_lazy("admin:course_courseattachment_changelist"))),
                 },
                 {
-                    "title": _("Glossary"),
+                    "title": _("Course Glossary"),
                     "icon": "book",
-                    "link": reverse_lazy("admin:course_glossary_changelist"),
-                    "active": lambda request: request.path.startswith(str(reverse_lazy("admin:course_glossary_changelist"))),
+                    "link": reverse_lazy("admin:course_courseglossary_changelist"),
+                    "active": lambda request: request.path.startswith(str(reverse_lazy("admin:course_courseglossary_changelist"))),
                 },
                 {
                     "title": _("Quizzes"),
@@ -538,41 +537,47 @@ UNFOLD = {
 
                   ]
             },
+            {
+                "title": _(""),
+                "items": [
+                    {
+                    "title": _("Certificates"),
+                    "icon": "workspace_premium",
+                    "link": reverse_lazy("admin:certificate_certificate_changelist"),
+                    },
+
+                ]                
+            },
             {
                 "title": _("Courses"),
                 "collapsible": True,
                 "separator": True,
                 "items": [
+                    {
+                      "title": _("Categories"),
+                      "icon": "category",
+                      "link": reverse_lazy("admin:course_coursecategory_changelist"),
+                    },
                     {
                       "title": _("Courses"),
                       "icon": "school",
                       "link": reverse_lazy("admin:course_course_changelist"),
                     },
                     {
-                      "title": _("Categories"),
-                      "icon": "category",
-                      "link": reverse_lazy("admin:course_coursecategory_changelist"),
+                      "title": _("Lessons"),
+                      "icon": "menu_book",
+                      "link": reverse_lazy("admin:course_lesson_changelist"),
+                    },
+                    {
+                      "title": _("Attachments"),
+                      "icon": "attach_file",
+                      "link": reverse_lazy("admin:course_attachment_changelist"),
                     },
                     {
-                        "title": _("Certificates"),
-                        "icon": "workspace_premium",
-                        "link": reverse_lazy("admin:certificate_certificate_changelist"),
-                    },                      
-                    #   {
-                    #     "title": _("Lessons"),
-                    #     "icon": "menu_book",
-                    #     "link": reverse_lazy("admin:course_lesson_changelist"),
-                    #   },
-                    #   {
-                    #     "title": _("Attachments"),
-                    #     "icon": "attach_file",
-                    #     "link": reverse_lazy("admin:course_attachment_changelist"),
-                    #   },
-                    #   {
-                    #     "title": _("Glossary"),
-                    #     "icon": "book",
-                    #     "link": reverse_lazy("admin:course_glossary_changelist"),
-                    #   },
+                      "title": _("Glossary"),
+                      "icon": "book",
+                      "link": reverse_lazy("admin:course_glossary_changelist"),
+                    },
                   ]
             },
             {
@@ -598,7 +603,12 @@ UNFOLD = {
                     # You can add more preference sections here
                 ],
             },
-
+    # "STYLES": [
+    #     lambda request: static("css/styles.css"),
+    # ],
+    # "SCRIPTS": [
+    #     lambda request: static("js/scripts.js"),
+    # ],
             # {
             #     "title": _("Hadis"),
             #     "collapsible": True,